Question 768970
Two trains start from towns 273 miles apart and travel toward each other on parallel tracks. They pass each other 3.5 hours later. If on train travels 14 mph faster than the other, find the speed of each train.
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let x=speed of faster train
let y=speed of slower train
distance = speed*travel time
..
x-y=14
3.5x+3.5y=273
..
3.5x-3.5y=49
3.5x+3.5y=273
add
7x=322
x=46
y=x-14=32
speed of faster train=46 mph
speed of slower train=32 mph